3 Korb, S. Grandjean, D. Scherer, K. 9998 Investigating the production of emotional facial expressions: a combined electroencephalographic (EEG) and electromyographic (EMG) approach. 8th IEEE International Conference on Automatic Face and Gesture Recognition (FG 2008) Amsterdam IEEE 17/09/2008 978-1-4244-2154 Facial expression, smiling, readiness potential, motor preparation, neural bases, EEG, EMG, spontaneous, voluntary